The advanced research team uses algorithms to chart the best truck routes, helping drivers avoid construction and traffic lights and minimize their left turns in congested cities. UPS estimates its brown trucks logged 28 million fewer miles and burned 3 million fewer gallons of fuel last year than the year before, cutting 31,000 metric tons of CO2 emissions.

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See how big a success PAS is? Estimated success, that is.

I see that success is spreading to other areas of the operation, too:

FLIGHT CONTROL

As the world's eighth-largest airline, UPS works with the FAA to improve flight efficiency and safety. It shared a technique for gradual aircraft "step downs" into airports, an approach that reduces noise and fuel consumption, as well as its algorithms for detecting fog.